折腾：
【未解决】Mac中用Selenium自动操作浏览器实现百度搜索
期间，去Mac中搭建Selenium的Python开发环境。
Mac Selenium
selenium python
直接用pip安装selenium：
pip3 install selenium Looking in indexes: http://mirrors.aliyun.com/pypi/simple/ Collecting selenium Downloading http://mirrors.aliyun.com/pypi/packages/80/d6/4294f0b4bce4de0abf13e17190289f9d0613b0a44e5dd6a7f5ca98459853/selenium-3.141.0-py2.py3-none-any.whl (904 kB) |████████████████████████████████| 904 kB 1.2 MB/s Requirement already satisfied: urllib3 in /Users/crifan/.pyenv/versions/3.6.6/lib/python3.6/site-packages (from selenium) (1.25.8) Installing collected packages: selenium Successfully installed selenium-3.141.0 WARNING: You are using pip version 20.2.2; however, version 21.0.1 is available. You should consider upgrading via the '/Users/crifan/.pyenv/versions/3.6.6/bin/python3.6 -m pip install --upgrade pip' command.
顺带去：
pip install --upgrade pip Looking in indexes: http://mirrors.aliyun.com/pypi/simple/ Collecting pip Downloading http://mirrors.aliyun.com/pypi/packages/fe/ef/60d7ba03b5c442309ef42e7d69959f73aacccd0d86008362a681c4698e83/pip-21.0.1-py3-none-any.whl (1.5 MB) |████████████████████████████████| 1.5 MB 4.0 MB/s Installing collected packages: pip Attempting uninstall: pip Found existing installation: pip 20.2.2 Uninstalling pip-20.2.2: Successfully uninstalled pip-20.2.2 Successfully installed pip-21.0.1
看看官网，是不是要下载webdriver：
【已解决】Mac中下载Selenium的Chrome的driver：ChromeDriver
然后继续，写测试代码：
# Function: demo selenium do baidu search
# Author: Crifan Li
# Update: 20210318
from selenium import webdriver
baiduUrl = "https://www.baidu.com"
chromeDriver = webdriver.Chrome()
chromeDriver.get(baiduUrl)
print("title=%s" % chromeDriver.title)效果是可以的：
可以控制Chrome浏览器，打开百度首页，得到title的。
至此，Selenium的开发环境就搭建好了。
【总结】
Mac中搭建Selenium的逻辑是：
- Python中安装Selenium库
- pip install selenium
- Mac中下载某个webdriver
- 此处选用Chrome的driver：ChromeDriver
- 需要下载到二进制的chromedriver，并确保PATH中能找到
- 详见：【已解决】Mac中下载Selenium的Chrome的driver：ChromeDriver
然后用代码：
from selenium import webdriver
baiduUrl = "https://www.baidu.com"
chromeDriver = webdriver.Chrome()
chromeDriver.get(baiduUrl)
print("title=%s" % chromeDriver.title)即可打开Chrome浏览器，且能看到Chrome中提示：Chrome正在受到自动测试软件的控制。
能继续打开百度首页，获取到title内容。
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